Oil pares loss as tight market offsets OPEC 's bigger hike ReutersOil prices fall as OPEC ramps up production; U.S. stock futures decline as tariffs to go into effect Aug. 1 MarketWatchOPEC's New Supply Shock Locks In Oil Market's Return to Surplus BloombergOPEC to Increase Output by 548,000 Barrels a Day in August. What it Means for Oil Markets. Barron'sOil Drops as Larger OPEC Supply Increase Raises Glut Concerns